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Mac Duggal 9950677P Petite Sweetheart Satin Fitted Long Gown
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Standard: arrives in 7 to 12 days
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Description
About the Dress: Mac Duggal 9950677P
Mac Duggal 9950677P is a long petite mermaid gown designed for those who want a dramatic, polished look for prom, black-tie events, galas, and formal evenings. The off-shoulder sweetheart neckline sits at the bust and frames the collarbone beautifully, while short puff sleeves at elbow length add a sculptural, fashion-forward volume. This is a petite-cut style, meaning the proportions — from the bust to the hip-to-flare point — are calibrated for shorter frames so the silhouette hits in all the right places without major hemming.
Fit & Silhouette
Mac Duggal 9950677P follows a true mermaid silhouette: the satin fabric stays close to the body from the chest all the way through the hips and thighs, then fans out below the knee into a flared skirt. Boning in the bodice keeps everything structured and in place so the dress holds its shape through a full evening. Because this is cut as a petite gown, the flare point falls where it should for shorter frames — you get the full mermaid effect without needing extensive alterations. The back closes with a zipper and covers to the mid-back, giving a clean, secure fit.
Fabric & Detail
The gown is made in satin, which gives it a smooth, lustrous surface that photographs exceptionally well and drapes cleanly over the mermaid silhouette. The satin catches light without being flashy — it reads as polished and sleek rather than heavily embellished. Boning in the bodice is built into the structure beneath the fabric, providing support and keeping the off-shoulder neckline firmly in position all night. The puff sleeves are short, hitting around the elbow, adding shape and volume to the shoulder without covering the arm fully. Available in Black and Midnight.
Key Features
- Petite cut — proportioned for shorter frames
- Off-shoulder sweetheart neckline
- Short elbow-length puff sleeves
- Boned bodice for structure and support
- Long mermaid silhouette — fitted through hips, flares below the knee
- Satin fabric — smooth, lustrous, no front slit
- Zipper back closure, covered to the mid-back
- Sizes 0–24
- Available in Black and Midnight
Style & Occasion
Mac Duggal 9950677P is a strong choice for prom, black-tie events, galas, formal evenings, and wedding-guest occasions where a long, structured gown is appropriate. The covered mid-back and sleek satin surface make it suitable as a wedding-guest gown at formal or black-tie weddings. The puff sleeves and off-shoulder line give it a fashion-forward edge that stands out at prom without leaning into heavy embellishment. For styling: with Black or Midnight satin, simple metallic jewelry works well — a delicate gold or silver necklace or statement earrings let the neckline speak. A strappy heeled sandal or block heel both work with the mermaid hem. Keep accessories streamlined so the silhouette stays the focus. Marlas Fashions is an authorized Mac Duggal retailer with over 40 years in the business, and every dress is inspected before it ships.
Size & fit
- Fitted (corset, mermaid). Bust, waist and hips all matter. Go by your largest measurement.
- Length: Long
- Neckline: Off-Shoulder, Sweetheart
- Between sizes? Text a stylist and we'll help you choose.
Shipping
- Arrives in 7–12 business days, or 4–6 with Express (+$35).
- Free shipping over $250 to Canada and the USA.
- Text updates as your order ships.
Full shipping details
Your Dress — Delivered in Days, Not Weeks.
We know timing matters — especially for prom, weddings, quinceañeras, and special events.
- Receive your dress within 7–12 business days, depending on designer availability.
- You’ll receive text updates as your order moves from processing to shipping.
- Once shipped, delivery typically takes 2–5 business days within North America.
Need it sooner?
We offer rush options where you can receive your dress within 4–6 business days. Text us at +1 416-536-2956 before ordering and we’ll confirm the fastest possible delivery date.
We are an authorized retailer of top designers, which means your dress ships brand new and directly from the designer or our showroom — never used, never rented.
Have an event date? Add it in your order notes so we can prioritize accordingly.
We proudly ship across Canada, the United States, and Internationally, with in-store pickup available at our Toronto showroom.
Returns
- Tell us within 5 days of delivery.
- 100% store credit, a one-time exchange, or a refund (30% restocking fee).
- Online purchases only; in-store purchases are final.
Full return policy
WE ACCEPT RETURNS!
For Online Purchases Only. All in-store purchases are FINAL.
We hope you LOVE your dress — but if you're not completely satisfied with your online purchase, you may request:
- 100% Store Credit (no expiration).
- A one-time exchange, OR
- A return with a 30% restocking fee, OR
You must notify us of a return within 5 days of delivery (including weekends and holidays — we are open 7 days a week).
We have no control and accept no responsibility for the sizing selected. Please carefully review the size chart before ordering. If you need assistance with sizing, we’re happy to help — text us at +1 416-536-2956.
ORDER CHANGES & CANCELLATIONS
Once your order is placed, you have 5 hours to request a change to the color, size, or style.
If an item becomes unavailable, we will offer alternatives or provide the option of a full refund for that item.
Please see our Returns & Exchanges page for full details.
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Free standard shipping on orders over $250 to the US and Canada. Under $250, shipping is shown at checkout.
Shipping details -
US orders ship from our warehouses in Los Angeles, Chicago and New York. Canadian orders ship from Toronto. No duties to pay at the door.
Shipping details -
Exchange, store credit or refund. Dresses tagged Final sale can't be returned.
Return policy -
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Frequently Asked Questions
Mac Duggal 9950677P runs true to standard US sizing, but because it is a petite cut mermaid gown, there are a few things worth understanding before you order. A petite cut means the gown's proportions — bust-to-waist length, waist-to-hip length, and the point at which the skirt flares out — are designed for frames approximately 5'4" and under. If you are in that height range, you will likely find the flare hits naturally at the knee or just below, which is where a mermaid silhouette is supposed to break. If you are closer to 5'5" or taller, the flare point will sit higher on your leg than intended, which changes how the gown moves and looks. For a mermaid silhouette specifically, fit at the hips and thighs matters more than for most other shapes. The dress is designed to sit close through those areas — it is not meant to have extra room through the hips or thighs. When you measure, compare your full hip measurement (the widest point) and your waist to Mac Duggal's published size chart, and size to whichever measurement is larger. A mermaid that is too tight through the hips will restrict your stride, and one that is too loose will not hold the silhouette correctly. The boned bodice adds structure above the waist. Boning does most of the work of holding the off-shoulder neckline in place, so the fit through the bust and ribcage needs to be snug enough that the boning can do its job — not so tight it is uncomfortable, but not loose either. If you are between sizes through the bust, size up and plan to have the bodice taken in by a tailor rather than sizing down and fighting with an overly tight boned section all evening. Sizes run 0–24, so most shoppers will find their standard size. If you are petite and normally take in hems on non-petite gowns, this cut should reduce the amount of alteration work significantly. If you are petite but fuller in the hips, you may still need minor adjustments — but the overall length proportions should work for you without a full hem job. If you are unsure between two sizes, measure your waist and hips carefully and compare to the Mac Duggal size chart. When in doubt on a mermaid silhouette, sizing up slightly through the hips and adjusting the waist is always easier than the reverse.
Mac Duggal 9950677P is designed for formal evening events, and it works across a specific set of occasions: prom, black-tie events, galas, formal evenings, and formal wedding-guest situations. For prom, the off-shoulder sweetheart neckline and mermaid silhouette give it a strong, fashion-forward look that holds up next to heavily embellished gowns without relying on sequins or beading. The puff sleeves add a distinctive silhouette detail that photographs well in group shots. For black-tie and gala events, the long satin mermaid shape reads as appropriately formal. The covered mid-back and clean zipper closure keep the look polished rather than overtly revealing, which suits formal dress codes well. Every PETITE order is hand-inspected before shipping so the fit and finish arrive flawless. If you are between sizes on the PETITE, send our team your measurements before ordering and we will advise. Popular colorways of the PETITE sell out quickly each season, so early orders get first pick. Our stylists fit the PETITE in the boutique every week and know exactly how it runs.
Mac Duggal 9950677P has a boned bodice, which is the main source of support in the dress. The boning runs vertically through the bodice and serves two functions: it keeps the off-shoulder sweetheart neckline in place throughout the evening, and it provides structure across the bust so the gown holds its shape without relying on an external bra. For most people, a separate bra is not necessary or practical with this neckline. The off-shoulder line and short puff sleeves make a standard bra strap visible and awkward. The boning is designed to take the place of a bra through the chest, provided the bodice fits correctly — snug enough to engage the structure, not so loose that the boning just floats away from the body. If you want additional support beyond what the boning provides, a strapless adhesive bra or silicone cups worn inside the bodice are the most practical options. These add lift without any visible straps. For the lower half, the mermaid silhouette fits close through the hips and thighs, so any shapewear you choose needs to be smooth through those areas — anything with a waistband that rolls or creates a ridge will show through satin. A mid-thigh smoothing short or a full bodysuit with a snap crotch are the most seamless choices under a fitted satin gown.
Because Mac Duggal 9950677P is a petite cut, it is already proportioned for shorter frames — roughly 5'4" and under — which means the flare point of the mermaid skirt is built to fall at the right spot for petite heights without a full-length hem job. If you are within the petite height range and ordering your correct size, you may find the gown needs little to no hemming. That is the main advantage of ordering a petite cut over a standard-length gown and hemming it down: the mermaid flare, the waist placement, and the overall vertical proportion are already compressed to match your frame. If you are between 5'3" and 5'5", try the gown on with the heel height you plan to wear before committing to any alteration. A 2-to-3-inch heel can shift where the hem falls enough to change whether you need a trim. If you are taller than 5'4" and considering this petite cut anyway, be aware the flare point will sit higher than intended on your leg, which alters the classic mermaid look. Lengthening a petite gown is generally not practical — it is much easier to shorten a standard-length gown than to extend a petite one. For any alterations to a boned satin mermaid gown, use a tailor with experience in formal wear specifically. Satin shows every pin mark and cut line, and a mermaid hem requires careful curved stitching to keep the flare looking intentional rather than uneven. Every 9950677P order is hand-inspected before shipping so the fit and finish arrive flawless. If you are between sizes on the 9950677P, send our team your measurements before ordering and we will advise. Popular colorways of the 9950677P sell out quickly each season, so early orders get first pick. Our stylists fit the 9950677P in the boutique every week and know exactly how it runs. Every 9950677P order is hand-inspected before shipping so the fit and finish arrive flawless.
Black in Mac Duggal 9950677P is a true, deep black satin. Under most lighting — indoor fluorescent, warm banquet light, flash photography — it reads as a clean, solid black with the reflective sheen of satin. It is not charcoal, not faded, and not brown-toned. If you need a reliable true black, this colorway delivers it consistently. Midnight is a very deep navy that photographs almost identically to Black in low-light or flash photography. The difference becomes visible under warm ballroom lighting or in natural light, where the blue undertone of Midnight becomes apparent. If you are ordering from a screen and the product photos make both colorways look almost identical, that is normal — the distinction is more obvious in person. For choosing between them: Black is the safer choice if you want something that reads as definitively black in every photo and under every light. Midnight is the better choice if you want a deep, rich color that has a subtle blue depth without looking obviously navy. Both work equally well with gold, silver, or rose-gold accessories. One practical consideration: if you are coordinating with a group, make sure everyone agrees on the same colorway before ordering. Under event lighting, Black and Midnight can look noticeably different standing side by side, even though they both appear near-identical in online product photography.
Mac Duggal 9950677P ships from Marlas Fashions in 7–12 business days standard, with rush shipping available if you have a tight timeline. US and Canadian orders ship from Los Angeles, New York, or Toronto warehouses — Canadian customers pay no duties. International orders ship with full tracking. All shipments are tracked end to end. When your gown arrives, hang it immediately on a padded hanger in a cool, dry space. Satin can develop pressure creases if left folded in the shipping box, so unwrapping it promptly and letting it hang will release most of those creases on their own within a day or two. For care after the event: satin is generally dry-clean only. Do not machine wash a structured satin gown — the boning, the lining, and the satin surface all need professional handling. If there are surface marks or minor stains, take the gown to a dry cleaner who has experience with formal wear and specify that it has boning in the bodice so they handle the structure correctly. For storage after cleaning, hang the gown in a breathable garment bag — not a sealed plastic dry-cleaning bag, which traps moisture and can yellow satin over time. Keep it away from direct light and humidity. If you need to fold it for travel or transport, fold along natural seam lines rather than across the satin face, and place acid-free tissue between folds to prevent creasing.
The off-shoulder sweetheart neckline is the focal point of Mac Duggal 9950677P, so the best accessory approach is one that lets the neckline do the work without competing with it. For jewelry, earrings are the most impactful choice with an off-shoulder neckline — your neck and collarbone are on full display, so a statement earring (drop, chandelier, or hoop) reads clearly without needing a necklace. If you want to add a necklace, keep it very fine and delicate, sitting above the sweetheart line rather than layering into it. A bold necklace sitting directly on a sweetheart neckline tends to look cluttered. For metal tone: gold works warmly against both Black and Midnight satin; silver reads cooler and crisper, which pairs well with Black in particular. For shoes, the mermaid hem means footwear is mostly hidden when you are standing still — the skirt skims the floor in a petite cut. A heeled shoe (strappy sandal, block heel, or classic pump) adds height and keeps the flare falling correctly. Because the skirt is fitted through the thighs, shoes with a lower block heel are often more comfortable for extended dancing or walking than a stiletto, which requires a different stride. Reach out to our team to text or message us at +1 416-536-2956 or WhatsApp +1 213-868-3131 if you want specific styling suggestions for your event.